AMD SEMPRON?

Hello friends. I need to buy a pc for work which will be just ok with a celeron pc considering speed etc. Now I've seen another pc whose OS is AMD Sempron 3000+ and is same price. I know AMD but the version Sempron 3000+ I don't know. WHat kind of AMD version is Sempron 3000+? How does it compare with Intel celeron? Please advise. Thanx in advance.